package web.demo.utils;

import java.io.InputStream;
import java.io.Reader;
import java.math.BigDecimal;
import java.net.URL;
import java.sql.Array;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Connection;
import java.sql.Date;
import java.sql.NClob;
import java.sql.ParameterMetaData;
import java.sql.PreparedStatement;
import java.sql.Ref;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.RowId;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Calendar;

public class LoggableStatement implements PreparedStatement{
	
	/** used for storing parameter values needed for producing log */    
    private ArrayList<Object> parameterValues;    
    
    /** the query string with question marks as parameter placeholders */    
    private String sqlTemplate;    
    
    /** a statement created from a real database connection */    
    private PreparedStatement wrappedStatement;    
	
    public LoggableStatement(Connection connection, String sql)    
            throws SQLException {    
        // use connection to make a prepared statement    
        wrappedStatement = connection.prepareStatement(sql);    
        sqlTemplate = sql;    
        parameterValues = new ArrayList<Object>();    
    }
    
    private void saveQueryParamValue(int position, Object obj) {    
        String strValue;    
        if (obj instanceof String || obj instanceof Date) {    
            // if we have a String, include '' in the saved value    
            strValue = "'" + obj + "'";    
        } else {    
            if (obj == null) {    
                // convert null to the string null    
                strValue = "null";    
            } else {    
                // unknown object (includes all Numbers), just call toString    
                strValue = obj.toString();    
            }    
        }    
        // if we are setting a position larger than current size of    
        // parameterValues, first make it larger    
        while (position >= parameterValues.size()) {    
    
            parameterValues.add(null);    
        }    
        // save the parameter    
        parameterValues.set(position, strValue);    
    }  
    
    // 这一步是对ArrayList与sql进行处理，输出完整的sql语句    
    public String getQueryString() {    
        int len = sqlTemplate.length();    
        StringBuffer t = new StringBuffer(len * 2);    
    
        if (parameterValues != null) {    
            int i = 1, limit = 0, base = 0;    
    
            while ((limit = sqlTemplate.indexOf('?', limit)) != -1) {    
                t.append(sqlTemplate.substring(base, limit));    
                t.append(parameterValues.get(i));    
                i++;    
                limit++;    
                base = limit;    
            }    
            if (base < len) {    
                t.append(sqlTemplate.substring(base));    
            }    
        }    
        return t.toString();    
    }
    public void addBatch() throws SQLException {    
        wrappedStatement.addBatch();    
    }    
    
    public void clearParameters() throws SQLException {    
        wrappedStatement.clearParameters();    
    }    
    
    public boolean execute() throws SQLException {    
        return wrappedStatement.execute();    
    }    
    
    public ResultSet executeQuery() throws SQLException {    
        return wrappedStatement.executeQuery();    
    }    
    
    public int executeUpdate() throws SQLException {    
        return wrappedStatement.executeUpdate();    
    }    
    
    public ResultSetMetaData getMetaData() throws SQLException {    
        return wrappedStatement.getMetaData();    
    }    
    
    public ParameterMetaData getParameterMetaData() throws SQLException {    
        return wrappedStatement.getParameterMetaData();    
    }    
    
    public void setArray(int i, Array x) throws SQLException {    
        wrappedStatement.setArray(i, x);    
        saveQueryParamValue(i, x);    
    }    
    
    public void setAsciiStream(int parameterIndex, InputStream x, int length)    
            throws SQLException {    
        wrappedStatement.setAsciiStream(parameterIndex, x, length);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setBigDecimal(int parameterIndex, BigDecimal x)    
            throws SQLException {    
        wrappedStatement.setBigDecimal(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setBinaryStream(int parameterIndex, InputStream x, int length)    
            throws SQLException {    
        wrappedStatement.setBinaryStream(parameterIndex, x, length);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setBlob(int i, Blob x) throws SQLException {    
        wrappedStatement.setBlob(i, x);    
        saveQueryParamValue(i, x);    
    }    
    
    public void setBoolean(int parameterIndex, boolean x) throws SQLException {    
        wrappedStatement.setBoolean(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, new Boolean(x));    
    }    
    
    public void setByte(int parameterIndex, byte x) throws SQLException {    
        wrappedStatement.setByte(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, new Byte(x));    
    }    
    
    public void setBytes(int parameterIndex, byte[] x) throws SQLException {    
        wrappedStatement.setBytes(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setCharacterStream(int parameterIndex, Reader reader, int length)    
            throws SQLException {    
        wrappedStatement.setCharacterStream(parameterIndex, reader, length);    
        saveQueryParamValue(parameterIndex, reader);    
    }    
    
    public void setClob(int i, Clob x) throws SQLException {    
        wrappedStatement.setClob(i, x);    
        saveQueryParamValue(i, x);    
    }    
    
    public void setDate(int parameterIndex, Date x) throws SQLException {    
        wrappedStatement.setDate(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setDate(int parameterIndex, Date x, Calendar cal)    
            throws SQLException {    
        wrappedStatement.setDate(parameterIndex, x, cal);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setDouble(int parameterIndex, double x) throws SQLException {    
        wrappedStatement.setDouble(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, new Double(x));    
    }    
    
    public void setFloat(int parameterIndex, float x) throws SQLException {    
        wrappedStatement.setFloat(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, new Float(x));    
    }    
    
    public void setInt(int parameterIndex, int x) throws SQLException {    
        wrappedStatement.setInt(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, new Integer(x));    
    }    
    
    public void setLong(int parameterIndex, long x) throws SQLException {    
        wrappedStatement.setLong(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, new Long(x));    
    }    
    
    public void setNull(int parameterIndex, int sqlType) throws SQLException {    
        wrappedStatement.setNull(parameterIndex, sqlType);    
        saveQueryParamValue(parameterIndex, new Integer(sqlType));    
    }    
    
    public void setNull(int paramIndex, int sqlType, String typeName)    
            throws SQLException {    
        wrappedStatement.setNull(paramIndex, sqlType, typeName);    
        saveQueryParamValue(paramIndex, new Integer(sqlType));    
    }    
    
    public void setObject(int parameterIndex, Object x) throws SQLException {    
        wrappedStatement.setObject(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setObject(int parameterIndex, Object x, int targetSqlType)    
            throws SQLException {    
        wrappedStatement.setObject(parameterIndex, x, targetSqlType);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setObject(int parameterIndex, Object x, int targetSqlType,    
            int scale) throws SQLException {    
        wrappedStatement.setObject(parameterIndex, x, targetSqlType, scale);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setRef(int i, Ref x) throws SQLException {    
        wrappedStatement.setRef(i, x);    
        saveQueryParamValue(i, x);    
    }    
    
    public void setShort(int parameterIndex, short x) throws SQLException {    
        wrappedStatement.setShort(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, new Short(x));    
    }    
    
    public void setString(int parameterIndex, String x) throws SQLException {    
        wrappedStatement.setString(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setTime(int parameterIndex, Time x) throws SQLException {    
        wrappedStatement.setTime(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setTime(int parameterIndex, Time x, Calendar cal)    
            throws SQLException {    
        wrappedStatement.setTime(parameterIndex, x, cal);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setTimestamp(int parameterIndex, Timestamp x)    
            throws SQLException {    
        wrappedStatement.setTimestamp(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal)    
            throws SQLException {    
        wrappedStatement.setTimestamp(parameterIndex, x, cal);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setURL(int parameterIndex, URL x) throws SQLException {    
        wrappedStatement.setURL(parameterIndex, x);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void setUnicodeStream(int parameterIndex, InputStream x, int length)    
            throws SQLException {    
        wrappedStatement.setUnicodeStream(parameterIndex, x, length);    
        saveQueryParamValue(parameterIndex, x);    
    }    
    
    public void addBatch(String sql) throws SQLException {    
        wrappedStatement.addBatch(sql);    
    }    
    
    public void cancel() throws SQLException {    
        wrappedStatement.cancel();    
    }    
    
    public void clearBatch() throws SQLException {    
        wrappedStatement.clearBatch();    
    }    
    
    public void clearWarnings() throws SQLException {    
        wrappedStatement.clearWarnings();    
    }    
    
    public void close() throws SQLException {    
        wrappedStatement.close();    
    }    
    
    public boolean execute(String sql) throws SQLException {    
        return wrappedStatement.execute(sql);    
    }    
    
    public boolean execute(String sql, int autoGeneratedKeys)    
            throws SQLException {    
        return wrappedStatement.execute(sql, autoGeneratedKeys);    
    }    
    
    public boolean execute(String sql, int[] columnIndexes) throws SQLException {    
        return wrappedStatement.execute(sql, columnIndexes);    
    }    
    
    public boolean execute(String sql, String[] columnNames)    
            throws SQLException {    
        return wrappedStatement.execute(sql, columnNames);    
    }    
    
    public int[] executeBatch() throws SQLException {    
        return wrappedStatement.executeBatch();    
    }    
    
    public ResultSet executeQuery(String sql) throws SQLException {    
        return wrappedStatement.executeQuery(sql);    
    }    
    
    public int executeUpdate(String sql) throws SQLException {    
        return wrappedStatement.executeUpdate(sql);    
    }    
    
    public int executeUpdate(String sql, int autoGeneratedKeys)    
            throws SQLException {    
        return wrappedStatement.executeUpdate(sql, autoGeneratedKeys);    
    }    
    
    public int executeUpdate(String sql, int[] columnIndexes)    
            throws SQLException {    
        return wrappedStatement.executeUpdate(sql, columnIndexes);    
    }    
    
    public int executeUpdate(String sql, String[] columnNames)    
            throws SQLException {    
        return wrappedStatement.executeUpdate(sql, columnNames);    
    }    
    
    public Connection getConnection() throws SQLException {    
        return wrappedStatement.getConnection();    
    }    
    
    public int getFetchDirection() throws SQLException {    
        return wrappedStatement.getFetchDirection();    
    }    
    
    public int getFetchSize() throws SQLException {    
        return wrappedStatement.getFetchSize();    
    }    
    
    public ResultSet getGeneratedKeys() throws SQLException {    
        return wrappedStatement.getGeneratedKeys();    
    }    
    
    public int getMaxFieldSize() throws SQLException {    
        return wrappedStatement.getMaxFieldSize();    
    }    
    
    public int getMaxRows() throws SQLException {    
        return wrappedStatement.getMaxRows();    
    }    
    
    public boolean getMoreResults() throws SQLException {    
        return wrappedStatement.getMoreResults();    
    }    
    
    public boolean getMoreResults(int current) throws SQLException {    
        return wrappedStatement.getMoreResults(current);    
    }    
    
    public int getQueryTimeout() throws SQLException {    
        return wrappedStatement.getQueryTimeout();    
    }    
    
    public ResultSet getResultSet() throws SQLException {    
        return wrappedStatement.getResultSet();    
    }    
    
    public int getResultSetConcurrency() throws SQLException {    
        return wrappedStatement.getResultSetConcurrency();    
    }    
    
    public int getResultSetHoldability() throws SQLException {    
        return wrappedStatement.getResultSetHoldability();    
    }    
    
    public int getResultSetType() throws SQLException {    
        return wrappedStatement.getResultSetType();    
    }    
    
    public int getUpdateCount() throws SQLException {    
        return wrappedStatement.getUpdateCount();    
    }    
    
    public SQLWarning getWarnings() throws SQLException {    
        return wrappedStatement.getWarnings();    
    }    
    
    public void setCursorName(String name) throws SQLException {    
        wrappedStatement.setCursorName(name);    
    }    
    
    public void setEscapeProcessing(boolean enable) throws SQLException {    
        wrappedStatement.setEscapeProcessing(enable);    
    }    
    
    public void setFetchDirection(int direction) throws SQLException {    
        wrappedStatement.setFetchDirection(direction);    
    }    
    
    public void setFetchSize(int rows) throws SQLException {    
        wrappedStatement.setFetchSize(rows);    
    }    
    
    public void setMaxFieldSize(int max) throws SQLException {    
        wrappedStatement.setMaxFieldSize(max);    
    }    
    
    public void setMaxRows(int max) throws SQLException {    
        wrappedStatement.setMaxFieldSize(max);    
    }    
    
    public void setQueryTimeout(int seconds) throws SQLException {    
        wrappedStatement.setQueryTimeout(seconds);    
    }  
  
    public void setAsciiStream(int parameterIndex, InputStream x)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setAsciiStream(int parameterIndex, InputStream x, long length)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setBinaryStream(int parameterIndex, InputStream x)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setBinaryStream(int parameterIndex, InputStream x, long length)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setBlob(int parameterIndex, InputStream inputStream)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setBlob(int parameterIndex, InputStream inputStream, long length)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setCharacterStream(int parameterIndex, Reader reader)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setCharacterStream(int parameterIndex, Reader reader,  
            long length) throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setClob(int parameterIndex, Reader reader) throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setClob(int parameterIndex, Reader reader, long length)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setNCharacterStream(int parameterIndex, Reader value)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setNCharacterStream(int parameterIndex, Reader value,  
            long length) throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setNClob(int parameterIndex, NClob value) throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setNClob(int parameterIndex, Reader reader) throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setNClob(int parameterIndex, Reader reader, long length)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setNString(int parameterIndex, String value)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setRowId(int parameterIndex, RowId x) throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public void setSQLXML(int parameterIndex, SQLXML xmlObject)  
            throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public boolean isClosed() throws SQLException {  
        // TODO Auto-generated method stub  
        return false;  
    }  
  
    public boolean isPoolable() throws SQLException {  
        // TODO Auto-generated method stub  
        return false;  
    }  
  
    public void setPoolable(boolean poolable) throws SQLException {  
        // TODO Auto-generated method stub  
          
    }  
  
    public boolean isWrapperFor(Class<?> iface) throws SQLException {  
        // TODO Auto-generated method stub  
        return false;  
    }  
  
    public <T> T unwrap(Class<T> iface) throws SQLException {  
        // TODO Auto-generated method stub  
        return null;  
    }

	@Override
	public void closeOnCompletion() throws SQLException {
		// TODO Auto-generated method stub
		
	}

	@Override
	public boolean isCloseOnCompletion() throws SQLException {
		// TODO Auto-generated method stub
		return false;
	}  

}
